Guppies Lab Report

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Relation of limiting factors of guppies with temperature, and plants with pH, and salinity. Genesis James Caparida Introduction It is common knowledge that there are limits to everything. Neither animal nor plant can exceed the limit of their natural structure. It is an indicator that is used whether the environment is habitable or not. There are sometimes that limitations are influenced by other factors in an organism’s environment (Hutchinson, 1976; Blackman 1905). Materials and Methodology The first experiment is the limiting factor guppies or rainbow fishes with temperature. Three beakers, one hot, one cold, one neutral, are where the fishes were placed. They were observed every five minutes for thirty minutes. The other experiment is the pH and salinity tolerance of our pechay seeds. There are five different levels of pH and salinity, each have at least five petri dishes with cotton soaked in …show more content…

of deaths 0 0 0 0 0 0 Cold is the absence of heat. Just like some animals, in order to preserve heat, less movement is done in order to keep the remaining heat inside the body. pH and Salinity on pechay. Certain change of the soil affects the growth of the plant. This is shown on the different lengths of seedlings on different levels of pH and salinity. The growth somehow reflects on the effects of different levels of the soil to the plants themselves (Foy 1992). Table 4, pH levels The regular pH of water is commonly at 7. Looking at the control group, the water assumptively has a pH level of 7. If pH level 8 is compared, the average shoot length is close to be the same with the average record of the control group, but not with the root length. pH level 5 has the highest average length of both root and shoot compared to the other groups (Foy 1984; Chapin et al. 1987). Table 5,

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